For concrete stairs, select Concrete Thickness and enter the throat thickness (see diagram) and Stair Width
to calculate formwork dimensions and concrete volume.
For wooden stairs, select Stringer Width and enter the width of the stringer.
Left click, release and drag to measure at full scale in top diagram.
Click Stringer diagrams to rotate to stair angle or level.

Total Rise

Ideal Rise

Possible Rises

Use Ideal Run

Use Total Run (Inch)

Use Stair Angle

Stringer WidthConcrete Thick

Stair Width

Tread Thickness

Riser Thickness

Nosing

Show Head-room

Floor Thickness

ColorRestrict

Share Calculation

Head

Ideal Run

Total Run

Angle

Stair Calculator rise run stringer and head-room plan diagram with full dimensionsStair Calculator - housed stringer diagram with full dimensions

To calculate and display upper floor opening and stair head-room, enter upper floor thickness, check the Show Head-room check-box and
drag the Head slider to calculate and animate diagram head-room and floor opening.

If you're cutting concrete, stone or ANYTHING and there's DUST - DON'T TAKE THE RISK
Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks

How should we spell it?

MetreMeter

Results

What do we think? - They're 2 different things:
A Meter is a device to measure things - like a Volt Meter or a Parking Meter
A Metre is about 3'-3~3/8"
Although diameter and perimeter as measurements - don't seem to fit very well
If the US ever goes Metric, you'll be able to use a Meter to measure Meters - A Meter Meter